George c rompton



@uiten gisten @anni @fitta 'GEORGE OEOMPTON, OE WORCESTER, MASSACHUSETTS.

Letters Patent No. 81,070, dated August 18, 1868.

IMPROVEMET IN LOOMS.

TO ALL `WHOM IT MAY OONCEEN;

Be it known that I, GEORGE CnoMPTON, of the city and county of Worcester, in the State o f Massachusetts, have invented au Improvement in Looms; and I do hereby declare that the following, taken in connection with the drawings which accompany and form p/art of this specification, is a description of my invention sufficient to enable those skilled'in the nrt to practise it. i l

r My invention relates to that class of fancy-looms having upright harness-jacks, jointed at their upper ends, and strung at their lower end to upper and lower sets of horizontal levers, between the inner ends of which levers the harness-levers are strung, the jacks being raised or lowered (or distributed) byangulnr lifter and depresser-levers, (in accordance with the position intowhich each is thrown by the pattern-chain or cylinder,) and being evened or brought into correct position for redistribution by angular cvener-levers.

My invention consists primarily in combining with horizontal harness-levers, jointed directly to the jacks, and with angular evener-levers operating directlyupon the harness-levers to bring them into line, and with the' slide-rods, which operate the evener-levers, rocker-links, for connecting'the. evener-levers to the slide-rods, these links allowing the evener-levers to vrise and fall without end-movement of the joint-pins, through which the connections are'made, or the fulerum-pins upon which the levers are hung.

The drawing represents a loom-frame embodying my invention* i A showing an end elevation thereof. v j

B, an end view of the lifter, depresseigand eveners, and the mechanism which actuntes them.

a denotes the frame; b, the lathe-shaft; c c', the upper and lower sets of harness-levers, between and vto the inner ends of which the harness-leaves are to be strung in the ordinary manner, while between their outer ends the jacks d are mounted, each jack being jointed at its -upper end directly to one of the upper levers, c, and being strung from its lower end to thecorresponding lever c', as seen at A. Euch jack d has on its front and rear edges (respectively)\a hook, by which the jack is thrown into engagement witna lifter-lever, f, or a. depresser-lever, g, for each new shed, accordingly as it is drawn outwardly by the cords or pressed inwardly' by the pins of'the pattern-cylinder 7L, or the equivalents thereof. I

The lifter and dcpresser-levers are angular" levers, eachbeing fnlcrumed at one end in a bracket or plate, z', and having motion communicated to them at theirA opposite end, `to raise and depress them, by their connc'ction with n slide-rod, l'c c, jointed to a crank, Z Z', on the end of shaft b.

The connection of each slide-rod to the lifter or 'depresscr-lever is made by means of an arm, m, fixe upon the rod, and a. link,'n, this link ny beingjointed to the arm m by a screw or pin, o, upon which it loosely rocks, and to the leverby a. pin, p, upon which it also loosely rocks. I

As before observed, the jacks d. are jointed at their. upper ends to Vthe upper horizontal harness-levers c, and after each throw of the shuttle the jacks are evcncdv(or their hooks are brought into horizontal line 'to disengage themfromthe lifter or depresser-lcvers, and allow them to assume their normal-position for redistribution) by two angular` evener-levers, q r, fulrumed at one end to a plate or bracket, s, and connected at their opposite ends to the slide-rods c, the movement of each being coincident with the movement of the lifter or deprcsscr-lcve`r, to which it is connected by its slide-rod. v

When the lift-er and depresser separate or open` to raise and lower the jack to form the shed, the evencrlevers also separate or open to allow movement of the harness-levers; and when the lifter and depresser return,' the cvcncr-levers take the harness-levers, and by raising or depressing them, bring them into horizontal line and clamp them, leaving the jacks freed from thc lifter and dcprcsser, so that they swing back into line for redistribution by the pattern-cylinder. l

Each evener-lever is connected to the slide-rod, which operates it, by a linkt, rocking loosely at one'end von a. pin, u, which joints it to an arm, v, projecting from the slide-rod, and at its otherend on afpin, w, which joints it to the evener-lifter. i

a The leversfg and q r are made adjustable, by means of the fulcrum-slots at one end, and the slots 1J at the opposite end.

The arrangementof the connections between the angular lifter and depresser-levers and the angular evener levers, allows the horizontal harness-levers to move and operate in concert with the lifter, depresser, and eveners, without the liability to play, caused by friction and wear consequent upon connecting the levers directly to the slide-rods or arms projecting therefrom.

I claim, in combination with angular 'evener-levers and horizontal harness-levers, operated upon by such eveners, (to bring thejack-hoolis into line,) the rocken-links t, which connect such ev'eners with the slide-rods, substantially as set forth.

I also claim, in combination` with jacks operating upon horizont-al harness-leversr and with angular lifter and depresser-levers operating such jacks, the angular lifter and depresser-levcrs connected to the slide-rods by which they are operated,'by the rocker-links.11' substantially as described.

GEO. CROMPTON.

Witnesses:

HORACE WYMAN, J. AQWRE. 

